Condensing duplex heater



(No Model.)

- 2 Sheets-Sheet 1. A. L. DRAPER. v

GONDENSING DUPLEX HEATER.

R Patented Aug. 2, 1887.

PETERS. Phm-Lnh n h r. ymhin mn. D. c.

2' Sheets-Sheet' 2.

(No Model.)

A. L. DRAPER.

OONDENSING DUPLEX HEATER. No. 367,706. Patented Aug. 2, 1887.

UNITED STATES PATENT OFFICEQ.

ALVIN LJDRA PER, O F ELLSVORTH, KANSAS.

CONDENSING DUPLEX HEATER.

SPECIFICATION forming part of Letters Patent No. 367,706, dated August 2, 1887.

Applieatitn filed September 6, 1886. Serial No. 32,841. (No model.)

To aZZ whom, it may concern:

Be it known that I, ALVIN L. DRAIER, a citizen of the United States, residing in the city and county of Ellsworth and State of Kansas, have invented a certain new and useful Improvement in Condensing Duplex Heaters, of which the following is a full, clear, and ex.- act description, reference being had to the accompanying drawings, forming part of this specification, and in which- Figure 1 is a vertical section through my i1nproved condenser and heater. Fig. 2 is a horizontal transverse section taken on line 2 2, Fig. 1. Fig. 3 is a section through the wall ofa room, showing part of the hot-air pipe and fan in elevation. Fig. 4 is an enlarged view of the three-way valve taken on line 44, Fig. 1.

My invention relates to a device for condensing steam, heating feed -watcr, and for heating rooms, if desired; andmy im'ention consists in features of novelty, hereinafter fully described, and pointed out in the claims.

teferring to the drawings, Arepresents an outer case or jaeket-,having a top, A, and bottom, A". Located within and a distance from this jacket is a water tank or receiver, 13, which is preferably made of metal, and beneath this tank Bis a combined water and steam tank, C, preferably made of wood, the

' around a common center it runs in straight lines united by such angles that in plan view it appears polygonal. The results produced by these two constructions are widely different. \Vith a shelf running in a circular direction the centrifugalforce, which is constautly accelerated as the water descends, causes it to fly off from the center around which the shelf winds and follow the outer side thereof, where it will be deepest,whilethe edge of the shelf nearest the center is perhaps perfectly dry. By constructing the shelf in straight lines,or with an outside edge bounded by straight lines, this centrifugal force. is entirely avoided, and the water runs, in a straight.

the valve maybe turned to close the water off from the shelf and cause it to pass through the pipe H when it is desired to fill the boiler directthrough this pipe. The water falling on the shelf passes slowly around, being finally discharged into the bottom of the tank O. As

it passes along the shelf, the scale and sediment settles upon the shelf and the water is heated by means of exhauststeam cjectedinto the chamber Efrem the boiler through apipe, I, which has an upward extension, I, so that the steam is directed upward against the bottom of the. tank B, and" then it is deflected down again, as indicated by the arrows. The chamber E is thus filled with steam, and the steam of course enters between the spirals of the shelf D, beating them and heating the water thereon.

The steam that is not condensed in this chamber escapes through openings or ports J (there is preferably one of these ports in each stave of the tank 0, though I do not confine myself to any particular number) and enters a stean'i-chamber, L, formed by the tanks-B and C and the jacket or case A. The steam passes up through the chamber L and enters the top of the tank B, as indicated by the arrows in Fig. 1, heating the water therein, there being a space left between the top of the tank 13 (for this passage of the steam from the chamber L) and a diaphragm, M,"extending across the case A, near its top A. densed in the chamber L and tank 13 escapes through a pipe or tube, N, extending from the diaphragm M to the top A of the jacket A.

Located in the chamber L are a number of pipes or tubes, 0, passing at their lower ends through the bottom A ofthe jacket A, so as The steam that is not con IOC to commnicate with the outer air, and passing at their upper ends through the diaphragm M, so as to communicate with a hot-ai r chamber, I, formed by the diaphragm M and the top A of thejacket. The cold air circulates through these pipes, as indicated by the featherless arrows in Fig. 1, and the action of the cold air upon the steam in the chamber L is to condense the latter, which, falling upon the botconstructed to expose steam to the action of cold air, in that a greatamount of steam is condensed in a small space and can be used as feed-water, having no impurities.

As the air passes through the pipes 0, it becomes heated and enters the hot-air chamber P, from where it may be taken through aflue, T, to heat a'room, U, the circulation of the air being caused by a suitable fan, U, as shown in Fig. 3, the fan causing not only the circulation of the air from the chamberI through the flue T, but also through the pipes O.

In case the air is not needed for the purpose of heating a room or building, there may be secured to the chamber P (in lieu of the pipe T) a draft-tube, T, as shown in dotted lines in Fig. 1, to cause a natural d raft ofthe air through the tubes 0.

The tank B may be provided with a float, V, having a scalebar, V, extending through the flue N, by which the amount of water in the tank B may be indicated.

The cold water is discharged into the tank 13 through a pipe, XV, provided at its end with a spray-nozzle, V.

The water may be strained in its passage through the tank 0 by a screen, X, placed in the side of a clear-water chamber, X, formed at one side of the tank 0, and with which the pipe It communicates.

The pipe B may be provided with a gage, It, to indicate the amount of water in the clear-water chamber X.

Y represents a man-head in the lower part of the tank 0.

I claim as my invention 1. In a condenser, in combination with an inner water and steam receptacle and an outer jacket forming a steam-chamber, means, sub stantially as described, for causing a circulation of cold air through the said chamber to condense the steam,.substantially as set forth.

2. In a condenser, the combination of a central water-receiver, an outer jacket, and coldair pipes, the receiver and jacket forming a StEEtlIl-ChitlllbGl in which the pipes are located and in which the steam is condensed by the action of the air in the pipes, substantially as set forth.

3. In a condenser, the combination of the tanks, outer jacket, and cold-air pipes, the tanks and jacket forming a steam-chamber in which the cold-air pipes are located and in which the steam is condensed by the action of the cold air in the pipes, substantially-as set forth.

4. In a feed-water heater, the combination of the outer jacket, upper tank, lower tank, coldwater pipe discharging into the upper tank, winding shelf located in the lower tank, and exhaust-steam pipe discharging into the lower tank, substantially as set forth.

5. In a feed-water heater,the combination of the outer jacket or case, an upper tank or water-receiver, a lower tank, winding shelf located within the lower tank and upon which the water is discharged from the upper tank,

a valve for controlling the passage of the water, and a steam-pipe entering the lower tank, I

substantially as and for the purpose set forth.

6. In a feed-water heater, the combination, with a suitable tank or casing and a pipe for feeding water thereinto, of a winding shelf upon which the feed-water is discharged, constructed with sides running in straight lines and united so as to form a shelf of polygonal (as contradistinguished from circular) shape, substantially as and for the purpose set forth.

7 In a feed-water heater, the combination, with the upper watertank and the lower steam-tank having a communicating-passage between them, of a valve for controlling the lowof water from the upper to the lower tank, a winding shelf in the lower tank upon which the water is discharged, and a steam-pipe for admitting steam to the lower tank, substantially as and for the purpose set forth.

8. In a feed-water heater, the combination of the upper water-tank, the lower tank provided with a winding shelf, a valve for controlling the passage of water from the upper tank to the shelf of the lower tank, and a pipe with which said valve is connected and through which the water may be made to pass by operating said valve, substantially as set forth.

9. In a feed-watcr heater, in combination with the upper tank or water-receiver, a lower tank provided with a winding shelf, a pipe located at the bottom of the upper tank, and a thrce-way valve for controlling the passage of water from the upper tank to the shelf of the lower tank or through the said pipe or for cutting it off from both, substantially as set forth.

10; In a feed-water heater, in combination with the upper tank or water-receiver, the lower tank provided with a winding shelf, a valve for controlling the passage of water from the upper tank to the shelfin the lower tank, and a pipe for discharging steam into the lower tank, said pipe having an upward extension ejecting the steam against the bottom of the upper tank, substantially as shown and described, for the purpose set forth.

11. In combination with an outer jacket, an upper tank and lower tank, apipe for dis- IIS tank, substantially as set forth.

13. In combination with the outer jacket, an upper tank and a lower perforated tank, the tanks and jacket forming a steam-chamber, the pipe for discharging steam into the lower tank, and cold-air pipes in said steamchamber, substantially as and for the purpose set forth. 1

14. In combination with the outer jacket and upper and lower tanks, the pipe for discharging steam into the lower tank, which escapes through perforations in said tank, cold air pipe located in a chamber formed by said tanks and jacket, hot-air chamber located over the upper tank and with which said cold-air pipes communicate, and a flue leading from said hot-air chamber to a room and provided with a fan, substantially as set forth.

15. In combination with the outer jacket and upper and lower tanks, the lower tank being perforated, the pipe for discharging steam into the lower tank, which escapes through the perforations in the lower tank into a chamber formed bysaid tanks and jacket, and a flue, N, for carrying off the nu condensed steam from the upper tank, substantially as and for the purpose set forth.

16. In combination with the outer jacket, the upper and lower tanks, the lower tank being perforated, a pipe for discharging steam into said lower tank, which escapes through the perforations in the tank into a chamber formed by the tanks and jacket and into the upper tank, a flue or pipe, N, for carrying off the uncondensed steam, and a float provided with a scale extending through said flue-or pipe, substantially as set forth.

17. In combination with the outer jacket and upper and lower tanks, the lower tank being provided with perforations, a pipe for discharging steam into said lower tank, which escapes through the perforations into a chamber formed by said tanks and jacket, the perforations being located at the bottom of said chamber, whereby the condensed steam may flow from the chamber into the lower tank,

'therefronuthe screen X, placed over said water-chamber, and the man-hole Y, all con-- structed and arranged substantially as set forth.

ALVIN L. DRAPER.

Vv'itnessesi BEN. FAGAN, J. H. CLARK. 

